2172853182631 has 2 divisors, whose sum is σ = 2172853182632. Its totient is φ = 2172853182630.

The previous prime is 2172853182607. The next prime is 2172853182659. The reversal of 2172853182631 is 1362813582712.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2172853182631 - 2²¹ = 2172851085479 is a prime.

It is a super-2 number, since 2×2172853182631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2172853182131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086426591315 + 1086426591316.

It is an arithmetic number, because the mean of its divisors is an integer number (1086426591316).

Almost surely, 2^{2172853182631} is an apocalyptic number.

2172853182631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2172853182631 is an equidigital number, since it uses as much as digits as its factorization.

2172853182631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 49.

The spelling of 2172853182631 in words is "two trillion, one hundred seventy-two billion, eight hundred fifty-three million, one hundred eighty-two thousand, six hundred thirty-one".